Home / 86,891.28-119,894.22-51,082.80

Finding the Fourth Proportional to 86,891.28, 119,894.22 and 51,082.80

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Solution

The fourth proportional to 86,891.28, 119,894.22 and 51,082.80 is: 70,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,891.28 : 119,894.22 = 51,082.80 : x
  2. Step 2: Convert to fraction form
    86,891.28/119,894.22 = 51,082.80/x
  3. Step 3: Cross multiply
    86,891.28x = 119,894.22 × 51,082.80
  4. Step 4: Simplify right side
    86,891.28x = 6,124,532,461.42
  5. Step 5: Solve for x
    x = 6,124,532,461.42/86,891.28
  6. Step 6: Final answer
    x = 70,485.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.